ASTM A363 - 03(2009)e1
ASTM A363
Abstract
This specification covers high strength, extra-high-strength, and utilities grades of concentric lay steel wire strand composed of three wires or seven wires in class A, class B, or class C zinc coatings specifically intended for use as overhead ground wires or static wires for electric transmission lines. The strand shall have a left lay with a uniform pitch of not more than 16 times the nominal diameter of the strand. The strand is preformed when the component wires are set to the helical form which they assume in the product by any means of process other than by merely laying them about the strand core. The approximate weight per unit length of strand and the minimum breaking strength of the finished strand are presented. The elongation shall be measured as the percentage increase in separation between the jaws of the testing machine from the position after application of the initial load, to the position of at initial failure in the test specimen.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the Standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
1.1 This specification covers high-strength, extra-high-strength, and utilities grades of concentric lay steel wire strand composed of three wires or seven wires with Class A, Class B, or Class C zinc coatings specifically intended for use as overhead ground wires or static wires for electric power transmission lines.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered Standard.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the Standard.
ASTM Standards
A90/A90M Test Method for Weight [Mass] of Coating on Iron and steel Articles with Zinc or Zinc-Alloy Coatings
A902 Terminology Relating to Metallic Coated steel Products
B6 Specification for Zinc
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Index Terms
coated overhead strand; steel wire strand; zinc-coated overhead strand; Electrical power systems--specifications; Ground wire strand; Overhead strand--specifications; Steel wire strand--specifications; Transmission lines (electric); Zinc-coated steel wire--specifications;
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ICS Code
ICS Number Code 29.060.10 (Wires)
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DOI: 10.1520/A0363-03R09E01
ASTM International is a member of CrossRef.
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ASTM A363 (Steel Standards)
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